314977160

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{129089}}^1$

素因数の和:129161

約数の個数: 32

約数和(自身を含む): 720322200

約数和(自身を除く): 405345040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 129089, 258178, 516356, 645445, 1032712, 1290890, 2581780, 5163560, 7874429, 15748858, 31497716, 39372145, 62995432, 78744290, 157488580, 314977160]

約数ペア:

[(1, 314977160), (2, 157488580), (4, 78744290), (5, 62995432), (8, 39372145), (10, 31497716), (20, 15748858), (40, 7874429), (61, 5163560), (122, 2581780), (244, 1290890), (305, 1032712), (488, 645445), (610, 516356), (1220, 258178), (2440, 129089)]